13-Letter Words Containing: S,E,X,T,E,T

• The capability of being extended

• A quality of design that takes possible future advances into consideration and attempts to accommodate them

• toxic antimetabolite that limits cellular reproduction by acting as an antagonist to folic acid; used to treat certain cancers and psoriasis and rheumatoid arthritis

• any receptor that responds to stimuli outside the body

• the quality of being inexact

• a premature systole resulting in a momentary cardiac arrhythmia